11630442665 has 4 divisors (see below), whose sum is σ = 13956531204. Its totient is φ = 9304354128.

The previous prime is 11630442661. The next prime is 11630442671. The reversal of 11630442665 is 56624403611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7543269904 + 4087172761 = 86852^2 + 63931^2 .

It is a cyclic number.

It is not a de Polignac number, because 11630442665 - 2² = 11630442661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11630442661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1163044262 + ... + 1163044271.

It is an arithmetic number, because the mean of its divisors is an integer number (3489132801).

Almost surely, 2^11630442665 is an apocalyptic number.

It is an amenable number.

11630442665 is a deficient number, since it is larger than the sum of its proper divisors (2326088539).

11630442665 is an equidigital number, since it uses as much as digits as its factorization.

11630442665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326088538.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 11630442665 in words is "eleven billion, six hundred thirty million, four hundred forty-two thousand, six hundred sixty-five".